diff --git a/synapse/util/caches/__init__.py b/synapse/util/caches/__init__.py
index 46af7fa473..8e253cb518 100644
--- a/synapse/util/caches/__init__.py
+++ b/synapse/util/caches/__init__.py
@@ -32,6 +32,11 @@ cache_hits = Gauge("synapse_util_caches_cache:hits", "", ["name"])
cache_evicted = Gauge("synapse_util_caches_cache:evicted_size", "", ["name"])
cache_total = Gauge("synapse_util_caches_cache:total", "", ["name"])
cache_max_size = Gauge("synapse_util_caches_cache_max_size", "", ["name"])
+cache_memory_usage = Gauge(
+ "synapse_util_caches_cache_memory_usage",
+ "Estimated size in bytes of the caches",
+ ["name"],
+)
response_cache_size = Gauge("synapse_util_caches_response_cache:size", "", ["name"])
response_cache_hits = Gauge("synapse_util_caches_response_cache:hits", "", ["name"])
@@ -52,6 +57,7 @@ class CacheMetric:
hits = attr.ib(default=0)
misses = attr.ib(default=0)
evicted_size = attr.ib(default=0)
+ memory_usage = attr.ib(default=None)
def inc_hits(self):
self.hits += 1
@@ -81,6 +87,8 @@ class CacheMetric:
cache_total.labels(self._cache_name).set(self.hits + self.misses)
if getattr(self._cache, "max_size", None):
cache_max_size.labels(self._cache_name).set(self._cache.max_size)
+ if self.memory_usage is not None:
+ cache_memory_usage.labels(self._cache_name).set(self.memory_usage)
if self._collect_callback:
self._collect_callback()
except Exception as e:
|
